Storage battery.



A. S. HUBBARD. STORAGE BATTERY.

l APPLIGATION FILED AUG. a, 1912.

. Patented Dec. 30, 1913;

3 SHEETS-TSHEET l.

/H/ 9, H 6 8,/7/ 8M www m LF ad [lll INVENTOI? 4M-Mfg ATToRNEm" A. S.HUBBARD. STORAGE BATTERY. APPLICATION FILED AG. 3A 1912.

Patented Dec. 30, 1913 'a SHEETS-SHEET 2.

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AsuB'ARDQ STORAGE BATTERY. APPLICATION FILED AUG. 3. 1912,

Patemed Dec. 30, 1913.

3 SHEETS-SHBET 3.

narran .sTATns assienon To GoULD sTonAeE or Nrw Yoan.

stromen BATTERY.

Specification of Letters Patent. Application filed August, y1912.

insaccaserial No. 713,036.

but with the cover on the Ventilating conveyer; Fig. 6 shows aperspective view of a jar embodying a modification; Fig. 7 shows anenlarged cross-sectional view of a novel form of vent duct; and Fig. 8shows a detail.

To all whom t may concern Be it known that I, ALBERT S. HUBBARD,

a citizen of the United States, and a resident of Greenwich, county ofFairfield, and State of Connecticut, have invented a new and useful.Improvement in Storage Batteries, of which the following is aspecication.

My invention relates to storage batter1es, and more particularly to theventilation of storage batteries.

The invention is especially useful in connection with batteries forsubmarine work where each battery is sealed and the batteries arrangedin an airtight compartment where e ventilation is essential; but theinvention 1s usefulin connection with batteries for other uses where thebatteries are subjected to -ex` cessive temperatures or where it isdesirable to place the `batteries in a room'or compart# 20 ment andconvey ofi the gases given of from the batteries.

One of the objects of the invention is to provide a durable andeliicient vent duct for sealed batteries which will prevent the acidinthe battery from slopping. out when the boat is pitching or rolling inthe trough of the sea.

Another object of the invention Vis to provide an eliicient and readilyinstalled ventilating conveyer for conducting oi the gases from thedifferent batteries in the compartment, and one which may be readilyremoved and replaced and which dispenses with piping connections throughthe battery Vcompartmentnwithbranches to each jar.

The invention will be more readily understood and further objects of theinvention will more fully appear from the following description taken 1nconnection with the acf companying drawings forming a part of thisspecification and in which Figure 1 is a side elevation of a batteryembodying certain features of the invention, with certain parts brokenaway and others in section; Fig Q is a sectional elevation taken througha compartment showing the batteries arranged and constructed for.ventilation in accordancewith one form of my invention; Fig. 3 shows avertical section taken on line a-a of Fig. 4; Fig. 4 shows a plan viewof theibat-teries arranged for ventilation in accordance with 'one formof my invention and with the top of the ventilatin'g conveyer removed;Fig. 5 is a sec- 55 tional elevation taken online b b of Fig. 4,

yReferring to the drawings, 1 is a battery the u'sual shown)l which" arerespectively connected to the positive and negative terminals 5 5 whichproject through a cover 6 and are provided with suitable bushings andlocknuts 7 The cover uis provided with an upright flange 8 extendinaround near its outer edge so as to form,l with the edge of the jarabove the able cementing compound 10 for sealin the coveron the jar. Thecover is provided, preferably near two of-its opposite edges withVentilating ducts llll f oft the gases from the jar when used withnatural ventilation, and for admitting and conveying off gases, ashereinafter explained, when used with forced draft ventilation.

form of a hollow tubular member 12 having a lower threaded portion 13which 'screws 'around the tubular member above the threaded portion thecover. The upper end 1 5 of the tubular member 12 is expanded, and atthe base of theexpanded .portion suitable threads 16 are formed intowhich atubular cap piece 17 is screwed. The walls ofthe cap piece form,with the inner surface of the expan'ded portion, a trough 18 surroundingthe' cap piece and communicating with lthe duct through vent openings 19formed in the walls of. the cap piece at the base of the trough. The cap4piece is preferably provided with a lateral annular fiangetQO extendingover the trough just above the top of the same. By using a Ventilatingdevice as above described, when the boat rolls in the trough of the sea,causing the acid to wash u in the Ventilating duct, any acid thatreaches the vent openings 19 willbe 4caught'inthe trough 18 andret-urned tothe jar through the vent openinvs,

the lateral flange 20 preventing any of tie acid which is caught in thetrough from be-V ing splashed over the edges of the same in veryroughweather. It is important that the vent ducts should Vextend highenough above the cover to'prevent the liquid as a i Patented Dec. 30,1913.

or .conveying `The Ventilating ducts are preferably in theV into thecover, a lateral flange 14 extending to form a tight joint with jar,lpreferably of hard rubber, containing n positive and negative` plates(not Y cover, a trough 9 in which is poured a suitmass, or in excessivequantities, from reaching the top of the duct, and to avoid this I havefound it necessary to extend the duct above the height of the edge ofthe jar; but in order to keep the'ducts out of the way o the terminalconnections, it is important that the tops of the ducts should notproject up to the part 21 of the terminals to which the connections aremade.

In submarine work, the batteries are usui ally arranged in rows in anair-tight compartment and held in position by a' cementing compound orother suitable means; an in order to ventilate the batteries in thecompartment, it has been proposed to run a pipe into the compartment andfrom this pipe, to run one or more branches to each of the separatejars. I propose to dispense with this network. of pipes with itsaccompanying inconveniences, by placing the jars close together in a rowand providing each jar with a vertical rib 22, preferably formedintegrally with the cover and extending up above the terminals andacross the jar so that the edges of the rib are flush with theLongitudinal side pieces 23-23f are then placed along the sides of thejar, extending up above the same subi stantially the height of the topof the ribs,

so vas to form, with the covers of the jars, a Ventilating passageway orconveyer divided into sections by the ribs, there being one rib to eachjar extending between the intake and outlet ducts ll-sll. The passagewayis provided with a suitable detachable cover l25 made of glass, hardrubber, or other suitable material, and preferv yablyfitted over theupper edges of the side pieces-by means of aflange, as shown in Fig. 5.`If desired, a suitable sealing com? pound 26 (Fig. 8) may be poured inbetween the side pieces 23-23 and the edges of the jar and the ribs, aswell as between l If desired, the jars may side walls 28--28. extendingthe abutting edges of the jar, thus dispensing with the necessity ofhaving the bottoms yo f the jars arranged and set in place so as .to beair-tight.

The side pieces 23-23 are preferably made of wood with a strip of glassextending above the edges of the lj ar and constituting the sides of theVentilating conveyer. be formed with their up above the top of the coverand flush' with the ribs 22 so as to takeA the place of the side pieces23-23- If desired, the jars may be provided, asin Fig. 6, with alateralflange 29 extending around the top of the rim so as to leave anair space between the jars below. the abutting flanges when the jars areplaced in a row for the purpose of passing air between the outersurfaces of the jars. When the jars have been suitably arranged inl thecompartment as above described, a suitable air intake pipe 30 isconnected to -ing conveyer `way extending along ,ends of the ribs,

I the Ventilating conveyer at one end and a suitable outlet pipe 32 isconnected at the other'end kand provided with a fan 33 for drawing airthrough the conveyer. As the fan is started up, air is drawn through thepipe 30 into fthe first section of the ventilatthrough the intake 'ducts11 into the jarand out through the outlet ducts 11 through the'secondsection of the conveyer andinto the'next jar, ing the air to passthrough each of the jars of the series. Obviously, it is immaterialwhether the airis sageway and the j ars-by means of a suctiony blower asherein shown, or by a pressure blower.

While I have shown and described my invention in the best form now knownto me,

' it will be obvious'to those skilled in the art that variousmodifications andchanges may b e madel in the arrangement andconstruction of the parts without departing frtm the scope or spiritofthe invention, an

etc., thus caus-V .75

forced through the pasnot wish to be understood as limiting myself otherthan as indicated in the appendedclaims. f I claim- I l. The combinationof a series of storage batteries having covers provided with inlet aVentilating passagethe battery jars and into which the vent ductsproject at intervals along its length, and substantially airtightpartitions dividing the passageway into sections, each sectioncontaining an inlet vent duct from vone jar andzan outlet vent duct froman adjacent jar, whereby air forced lthrough the passa eway is made `toe series.

2. The combination of a series'of storage and outlet vent ducts,

batteries having covers provided with inlet and outlet vent ducts,'aVentilating substantially air-tight: passageway extending along the.tops of the covers of the jars and into which the ventducts from thejars project at intervals along its length, and substantially air-tightpartit-ions between the inlet and outlet ducts of each 'ardividingthepassageway into sections, w ereby air forced, through the passagewaypasses through theff jars'of lthe series. Y

3. The combination of a series of storage batteries each provided with acover, each cover being provided with an upwardly projecting ribextending across the jar and with inlet and outlet vent ducts arrangedrespectively on opposite extending along projecting above the sides ofthe jars and the covers and along the l and a cover for lthe pas-4sageway extending tween the side piecesand forming therewith and withthe tops of the jars a'ventilating passage divided into sections,

4. The comb'nation of a series of storage sides of the rib, side piecesacross the ribs and be' l one against the other batteries each having acover provided with inlet and outletair ducts,pa substantially air-tightVentilating passageway. extending along the tops of the jars and intowhich the vent'ducts.- open,

sol/that the covers of the jars formgthe floor of the'ventilatingpassage, and' substantially air-tight partitions dividing the:passageway into sections, each4 Section containing an inlet vent of onejar and an outlet vent of an adjacent jar.

5,' The combination of a series of storage batterieseach provided with acover,Y each cover being provided with anupwardly pro'- jecting ribextending across the jar and with c inlet and outlet vent ducts arrangedrespectively along the abutting jars, side pieces extending along thesides of the jars and projecting above thecovers and formingsubstantially air-tight joints with the ends offtheribs and covers, anda 'storage batteries,

.of the duct a. trough for .catching 'and returning tothe out throughthe vent openings:

jar any acid that may slop 7.' In a Ventilating structure for coveredthe` combination -of 'a gasconveying 'duct extending through-thecoverand closed atI its upperend,`a lateral'annuj; lartlange surroundingtheupperend ofthe duct, a

nda cup-like iange projecting upwardly from the duct and surrounding thesame to form therewith anv annular trough below the lateral Hange, theduct`having vent openings .into thetrou'gh whereby acid slopping throughthe openings .is caught and 'returnedtothe jar'. 8. In a- Ventilatingstructure for covered storage batteries, the combination of agasconveying duct extending through the cover and closed -a'titsupperend, a cup-like flange projecting upwardly from the duct andsurrounding the same to form therewith an annular trough, the ducthaving `ventxopeningsintoI the trough, and a lateral annular flange onthe duct and extending over the saine, so as to ermit the passage ofgases between it and t` e upper edge of the trough, but preventing thethe jars being placed' edges of adjacent battery having the top ofthebatte for catchingv and, returnin just. above .the trough 4 .acid in thejar from slopping ont over the y trough.

9. A ventilating structure `for-closed 'storage batteries comprising ahollow member extending through the cover-.and having an.-

openexpanded upper portion, a vhollow`cap piece projectingup within andabove the expanded portion and forming therewith a 'trough, the walls ofthe cap piece having openings into the trough,

and a. lateral flange around the cap over the trough.

10. A -ventilatingstructure for closed storage batteries comprising atube .extenda in'g through the cover andV having an open expanded upperportion, a tubular cap piece and extending piece removably secured tothe tube below lng therewith a trough surrounding the cap piece, the cappiece being provided with a the top of the expanded portion andform-Vent below the top oftheftrougg nda lateral flange surrounding the cappiece 'ust above the top of the trough land extending overthe saine. l

11. The .combination of a closed storage fiar extendingabove the coverso as to form an upright' liange aroundl thev same, terminals from thebattery-plates extending through a vent duct extending up through thecover,

the cover and closed at its upper end and having one or more ventopenings above the cover, and a tending above the top of the jar butbelowthe connecting point on the terminals of the jar,l whereby theprojecting Vents do not interfere with connections to theterminals.

Y surrounding flange' extendingv .upwardly from the duct ata point belowthe .Vent openings and extending above the same 'ar any. a

12. A Ventilating structure for closed storage'batteries comprisingahollow mem- 4 I ber extending-through the cover and havingv f an openexpanded upper portion, a hollow cap piece threaded in to the hollowmember and projecting up within and above the ex- .panded portion" andforming vtherewith a.-

trough, the walls of the cap `piee having openings into the trough, anda `lateral liange a'round the cap piece and extending 'over the trough.

VIn testimony whereof, I have signed my name to this of two Ysubscribing -witnesses.

` .ALBERT s. nUBBAnD. Witnesses:

A. T. sn,

W. HinsoHMANN..

specification, inthe presence

